1.appetite for 对…的欲望

Exercise will improve your appetite for food.
运动能增进你的食欲。

He spent a lot of money in satisfying the appetite for excitement and amusement.
他花钱如水，以求满足兴奋和欢娱的欲望。

2.central message 中心信息

A central message broker can receive messages from different applications, determine the correct destination for each message type, and route the message to the appropriate destination application.
中心消息代理可以从不同的应用程序接收消息，为每种消息类型确定正确的目的地，并将消息路由到适当的目的地应用程序。

A central message of the book is that “prevention pays, but you don't always have to pay more for prevention.
该书的一个核心信息是，“预防性措施是要付出的，但你不必总是为预防性措施付出更多的费用。

3.radical change 巨变

Still, it is not quite the radical change that a neutral bankruptcy judge might have allowed.
然而，这不是很激进的变化，一个中立的破产案件时可能被接受的。

As our society undergoes this radical change, we need to ensure that we manage the impact appropriately.
我们的社会发生了这样根本性的变化，我们需要确保妥善应对它的影响。

4.pragmatic centrist 实用主义的中立派议员

Obama is the ultimate pragmatic centrist and has demonstrated time and again that is intereted in nothing but bipartisan solutions, to a clear fault.
奥巴马是彻头彻尾的实用主义中间派，一再表明他钟情于两党合作的解决方案，显然是个错误。